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Symmetry of carrier-envelope phase difference effects in strong-field, few-cycle ionization of atoms and molecules

Authors
  • Martiny, Christian Per Juul
  • Madsen, Lars Bojer
Type
Published Article
Publication Date
Dec 22, 2006
Submission Date
Jul 10, 2006
Identifiers
DOI: 10.1103/PhysRevLett.97.093001
arXiv ID: physics/0607077
Source
arXiv
License
Unknown
External links

Abstract

In few-cycle pulses, the exact value of the carrier-envelope phase difference (CEPD) has a pronounced influence on the ionization dynamics of atoms and molecules. We show that for atoms in circularly polarized light, a change in the CEPD is mapped uniquely to an overall rotation of the system, and results for arbitrary CEPD are obtained by rotation of the results from a single calculation with fixed CEPD. For molecules this is true only for linear molecules aligned parallel with the propagation direction of the field. The effects of CEPD are classified as geometric or non-geometric. The observations are exemplified by strong-field calculations on hydrogen.

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